Hi Miguel,
Preface: I know little about this ext, so feel free to educate me on
the wrongness of my thinking.
On Thu, Jun 21, 2018 at 10:01 PM, Miguel A. Vico <mvicom...@nvidia.com> wrote:
> Add memory object support for nvc0 and nv50
>
> Signed-off-by: Miguel A Vico Moya <mvicom...@nvidia.com>
> ---
> .../drivers/nouveau/nv50/nv50_miptree.c | 49 +++++++++++++----
> .../drivers/nouveau/nv50/nv50_resource.c | 52 +++++++++++++++++++
> .../drivers/nouveau/nv50/nv50_resource.h | 33 ++++++++++++
> .../drivers/nouveau/nvc0/nvc0_resource.c | 22 ++++++++
> 4 files changed, 146 insertions(+), 10 deletions(-)
>
> diff --git a/src/gallium/drivers/nouveau/nv50/nv50_miptree.c
> b/src/gallium/drivers/nouveau/nv50/nv50_miptree.c
> index f2e304fde6..91007d3dac 100644
> --- a/src/gallium/drivers/nouveau/nv50/nv50_miptree.c
> +++ b/src/gallium/drivers/nouveau/nv50/nv50_miptree.c
> @@ -397,13 +397,13 @@ nv50_miptree_create(struct pipe_screen *pscreen,
> return pt;
> }
>
> -struct pipe_resource *
> -nv50_miptree_from_handle(struct pipe_screen *pscreen,
> - const struct pipe_resource *templ,
> - struct winsys_handle *whandle)
> +static struct pipe_resource *
> +nv50_miptree_from_bo(struct pipe_screen *pscreen,
> + const struct pipe_resource *templ,
> + struct nouveau_bo *bo,
> + uint32_t stride)
> {
> struct nv50_miptree *mt;
> - unsigned stride;
>
> /* only supports 2D, non-mipmapped textures for the moment */
Won't this be a drag, since you're supposed to be able to "place" 3d
textures, as well as mip-mapped ones?
The reason I haven't looked at doing VK for nouveau yet is that the
nouveau kernel API does not allow explicit userspace-side VA
management, which would be required to allow something like this. I
believe it would also be required to implement this GL extension. Feel
free to correct my thinking.
Cheers,
-ilia
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